Rebased onto main (was 308 behind) and gated the new default-on behaviour on the de-parallel-router canary, at 5%. Default-ON without a ramp is a ~17x exposure jump: from ~6% of eligible renders today to all of them, landing on profiles the opt-in trial never covered (<=4 CPUs and Docker, ~12% of eligible renders between them). 0.7.60-0.7.64 is why that matters — every unclamped render reverted for five consecutive releases and nobody noticed. The gate reuses the breaker's own disarm: non-enrolled installs get an explicit HF_DE_PARALLEL_ROUTER=false, because with default-ON polarity deleting the var means ON. Setting the registry percentage to 0 is therefore a full fleet-wide revert with no release. Today's ~11% of installs routing is emergent — the product of eligibility rules and a capped trial — so it drifts with fleet composition and cannot be turned off without shipping. The point of the canary is that the number becomes chosen and revertible, not that it is smaller. Also replaces the registry test that pinned the percentage to 0. Its intent was 'ramp only alongside the circuit breaker', but pinning 0 blocks the ramp forever and never checks the wiring it names. It now asserts the wiring directly, and fails if either the canary gate or the breaker consult is removed. Hold at 5% until PRINFRA-372 resolves: --workers auto crashes every worker on macOS arm64 while --workers 1 is clean, and the router forces 3 workers. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
hyperframes
CLI for creating, previewing, and rendering HTML video compositions.
Install
npm install -g hyperframes
Or use directly with npx:
npx hyperframes <command>
Requirements: Node.js >= 22, FFmpeg
Commands
init
Scaffold a new Hyperframes project from a template:
npx hyperframes init my-video
cd my-video
preview
Start the live preview studio in your browser:
npx hyperframes preview
# Studio running at http://localhost:3002
npx hyperframes preview --port 4567
render
Render a composition to MP4. Run from the project directory; the positional
argument is the project directory (not a file), so render the project's
index.html directly, or point at a specific composition file with -c:
npx hyperframes render -o output.mp4
npx hyperframes render -c ./my-composition.html -o output.mp4
lint
Validate your Hyperframes HTML:
npx hyperframes lint ./my-composition
npx hyperframes lint ./my-composition --json # JSON output for CI/tooling
npx hyperframes lint ./my-composition --verbose # Include info-level findings
By default only errors and warnings are shown. Use --verbose to also display informational findings (e.g., external script dependency notices). Use --json for machine-readable output with errorCount, warningCount, infoCount, and a findings array.
compositions
List compositions found in the current project:
npx hyperframes compositions
benchmark
Run rendering benchmarks:
npx hyperframes benchmark ./my-composition.html
doctor
Check your environment for required dependencies (Chrome, FFmpeg, Node.js):
npx hyperframes doctor
browser
Manage the bundled Chrome/Chromium installation:
npx hyperframes browser
info
Print version and environment info:
npx hyperframes info
docs
Open the documentation in your browser:
npx hyperframes docs
upgrade
Check for updates and show upgrade instructions:
npx hyperframes upgrade
npx hyperframes upgrade --check --json # machine-readable for agents
Documentation
Full documentation: hyperframes.heygen.com/packages/cli
Related packages
@hyperframes/core— types, parsers, frame adapters@hyperframes/engine— rendering engine@hyperframes/producer— render pipeline@hyperframes/studio— composition editor UI